Z.ai: GLM 5 vs Grok Code Fast 1
Compare Z.ai: GLM 5 by Zhipu AI against Grok Code Fast 1 by xAI, context windows of 203K vs 256K, tested across 53 shared challenges. Updated April 2026.
Which is better, Z.ai: GLM 5 or Grok Code Fast 1?
Z.ai: GLM 5 and Grok Code Fast 1 are both competitive models. Z.ai: GLM 5 costs $0.8/M input tokens vs $0.2/M for Grok Code Fast 1. Context windows: 203K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Z.ai: GLM 5 and Grok Code Fast 1
Z.ai: GLM 5 is made by zhipu while Grok Code Fast 1 is from xai. Z.ai: GLM 5 has a 203K token context window compared to Grok Code Fast 1's 256K. On pricing, Z.ai: GLM 5 costs $0.8/M input tokens vs $0.2/M for Grok Code Fast 1.
No community votes yet. On paper, Z.ai: GLM 5 has the edge — bigger model tier, newer.
Style Comparison
Grok Code Fast 1 uses 6.0x more emoji
vs
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
